《数学课程标准》的一个重要理念就是为学生提供做数学、“玩”数学的机会。让学生在学习过程中去体验、去经历数学。学生有了兴致,就会激发求知欲,形成积极的“心向”。在教学中,我们应不断创设与学生心理需要同步的情境,唤起学生的学习热情。 An important concept of “Math Curriculum Standards” is to provide students with the opportunity to do math, “play” math. Let students experience in the learning process, to go through math. Students with interest, it will stimulate curiosity, the formation of a positive “heart ”. In teaching, we should continue to create situations that are in sync with students’ psychological needs and arouse their enthusiasm for learning.